Governor



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Oct, 29, 1929. a. L. MOYERS ET AL GOVERNOR Filed Dec. 19, 1927 2Sheets-Sheet wgmom MM 7 ATTOR EY.

l 'atentecl Oct. 29', 1 929 UNITED STATES PATENT OFFICE GLENN L. Homes,on sr. cLAiR SHORES, AND EARL A, ABRAHAM, or nn'rnorr, MICHIGAN,ASSIGNORS 'ro MONARCH GOVERNOR co., or nn'rnorr, MICHIGAN GovEnNonAppIication filed December 19, 1927. Serial No. 241,207.

Our invention relates to improvements in governors for, use on internalcombustion engines in which the governor valve mechanism is actuated. bythe flow of the fuel charge to the engine and also relates to thegovernor mechanism disclosed in our application filed September 19,1927, Serial Number 220,417, although it is not restricted thereto.

The objects of'our invention are, first, to provide means fordetermining the profile of a cam that will provide perfect balancebetween the torque reactions imposed upon the governor valve by the flowof. the fuel charge and the counter-balancing means of the governor forany given engine at a predetermined speed; second, to provide means forestablishing the required profile of a governor control cam whosecontrol characteristics change in any increment of movement; and third,to provide means for establishing the required profileof a mastergovernor control cam for a given engine in such manner as to permit ofits exact and easy'duplication commercially.

We attain these objects by the mechanism illustrated in the accompanyingdrawings, in which Figure 1 is a side view of the master governormechanism' assembled to the intake manifold of an engine preparatory to'developing its required control cam profile, the valve being shown inthe open position; Figure 2, a side view of the master governormechanism with its control cam profile fully established for a givenengine, at a predetermined speed, the valve being shown in the closedposition; Figure 3, a view of the master. governor mechanism as itappears in a plane parallel to its control mechanism base; and Figure 4,a curve plotted in variables of governor valve opening and torqueproduced by the said reactions on the valve.

Similar numerals refer to similar parts throughout the several views.

In Fig. 1, the lever arm 1 is. fastened to the valve shaft 2 by the pin3. The plate 4 is mounted on the valve housing 5-having flanges /6 and7. The flange 6. enables the valve housing 5 to' be bolted to the flange8 of the intake manifold 9 of the given in ternal combustion engine.Theflange 7 enables the valve housing 5 to be bolted to the flange 10 ofthe carburetor 11.

-- The valve 12 is suitably fastened to the valve shaft 2. The flexiblemember 13 is fastened to the lever arm 1 by the screw 14 and contactswith the hub 15 of the lever arm 1 when the valve 12 is in an. openposition as shown by dotted lines in Fig.1. The outer end of theflexible member 13 is connected to the spring 16 which in turn isconnected to thelink 17. The link 17 is adapted to oscillate on the pin.18. The pin 18 is mounted in the plate 4 and allows the link 17 tooscillate in the plane of the movement of the lever arm 1. To providethe necesssary clearance for this oscillating movement, the plate 4 hasa clearance hole 19.

The above portion of the description of our invention conforms veryclosely with a like portion of the mechanism disclosed in ourapplication filed Sept. 19, 1927, Serial Number 220,417. and whichdisplayed a con-' trol cam. Our present invention discloses a governormechanism that makes possible the establishment of the necessary profileof the said control cam to secure the proper operation of thecounterbalancing means so that the reaction of the said counterbalancingmeans will be exactly like that of the reactions imposed on the governorvalve by the variable forces derived from the operation of a givenengine, thus enabling the governor operation to follow the saidreactions as developed in any given engine at any predetermined speed.For test purposes to determine the required profile of the control cam,adjusting screws 20 are threaded into the lever arm l at spacedpositions throughout its length. WVhen thus installed on the governor inconnection with the valve 12, the adjusting screws 20 are all backed outof the lever arm 1 so that their upper ends 21 are not touching theflexible memberlS, as shown in Fig. 1'. When the test is made with agiven engine connected to a dynamometer, the governor throttle is heldmanually in a position to give the desired maximum speed with no loadbeing registered on the dynamometer. Thereupon the adJusting screw 22 israised until its upper end touches the flexiblemember l3 and holds thevalve 12 in suspension at the desired maximum idling speed with no load;Load may then be applied and the next adjusting screw 23 raised untilits upper end contacts with flexible member 13, forcing the valve 12open sufficiently to maintain the original engine speed with theadditional load. This procedure is continued with the remainingadjusting screws, in the lever arm, throughout the entire range of themovement of the valve 12, the application of the load ranging from themaximum idling to the possible full load positions. When this procedureis completed, the adjusting .-.crews will occupy positions as shown inFig.

2, the upper ends of the adjusting screws 20* forcing the flexiblemember 13 to the shape as shown in Fig. 2. When this is accomplished theshape of the flexible member 13 Will represent the requiredprofile of acontrol cam that will provide perfect balance between the torquereactions imposed upon the valve 12 and the spring 16 operating throughthe flexible member 13.

The screw 24 is threaded into the boss 25 on the plate 4 and engages thelever arm 1,.thereby forming an adjustable stop for the lever arm 1 andpermitting the proper establishment of the open throttle position of thevalve 12 in accordance with the maximum fuel demands of the given engineat a predetermined speed.

lug. 4, is the torque curve of a governor valve in the intake of anengine displaying In our invention we are able to produce this properstate of equilibrium between the valve adjustment and the engine loadvariations in relation to engine manifold pressures, as disclosed ingeneral, in F igyet, by our very sensitive and exact counterbalancingmechamsm.

We claim:

. 1. In a valve control mechanism for an internal combustion engine, thecombination of a lever connected to the valve and adapted to movetherewith, the said lever having a plurality of contact surfaces, aflexible member, connectedat one of its ends, to the said lever andresiliently anchored at the other of its ends, the said flexible memberbeing adapted to contact with the contact surfaces of the said lever,and adjustable means for varying the position of each of the contactsurfaces of the said lever relative to the said lever.

.2. In a governor for internal combustion engines, the combination of agoverning member capable of being moved to a closed position by thereactions imposed thereupon by the operation of the engine, a leverconnected to the said governing member and adapted to move therewith,the said lever having a plurality of contact surfaces, a flexible memberconnected, at one of its ends, to the said lever and resilientlyanchored at the other of its ends, the said flexible member beingadapted to contact with the contact surfaces of the said lever, andmeans for varying the position of each of the contact surfaces of thesaid lever relative to the said lever, in accordance with apredetermined engine speed.

3. In a valve counterbalancing mechanism in a governor for an internalcombustion engine, the combination of a lever connected to the valve andadapted to move therewith, a plurality of adjustable members mounted onthe said lever, a flexible member connected to the said lever, andaresilient member swivelly anchored, the said resilient member beingconnected to the said flexible member, and exerting through the saidflexible member, a force on the said adjustable members at pointsincreasingly removed from the pivotal point of the said lever during theclosing movement of the valve.

4. In a governing device for a hydrocarbon engine, the combination of ahousing having an intake conduit, a governing member located in theintake conduit of the said housing, the said governing member beingcapable ofbeing moved to a closed position by the reactions imposedthereupon by the operation of the engine, a lever connected to the saidgoverning member, adjustable members mounted in the said lever, aresilient member swivelly attached to the said housing, and a flexiblemember connected to the said resilient member and the said lever, thesaid flexible member increasing its length of contact with the saidadjustablemembers during the movement of the said governing member to aclosed. position, thereby causing the said resilient-member to exert anincreasing tension to maintain the said governing memher in a state ofequilibrium at a predetermined speed, relative to the reactions imposedthereupon by the operation of the en glne. v

5. In a governing device having a governing member capable of beingmoved to a closed position by the reactions imposed thereupon by theoperation of the engine, a lever connected to the governing member andadapted to move therewith, adjustable memver and its outer end connectedto the said resilient member, the outer end of the said flex-' iblemember being increasmgly'removed from the anchorage point of the saidresilient member with the movement ofthe governing member to a closedposition, the said resilient member being thereby rapidly accelerated toa maximum extended position to maintain the said governing member in astate of equilibrium, at a predetermined speed; relative to thereactions imposed thereupon by the operation of the engine.

6. In a governor for a hydrocarbon engine, the combination of a housingwith an intake passage, a governing memberlocated in the intake passageof the said housing, the said governing member being supported in thesaid housing and having an extension through one of the walls thereof, alever fastened to the extension of the said governing member, adjustablemembers mounted in the said lever, a flexible member fastened to thesaid lever, and a resilient member swivelly connected to the saidhousing, and to the said flexible member, the said resilient memberthereby exerting a suflicient reaction on the said adjustable memberstomaintain the said governing member in a state of equilibrium at apredetermined speed, relative to the reactions imposed thereupon by theoperation of the engine.

7 In a governing device for a hydrocarbon o J engine, the combination ofa housing havlng an intake condu1t, a governing member located in theintake of the said housing, the said governing member being capable ofbeing moved to a closed position by the reactions imposed thereupon bythe operation of the engine, the said governing member having a shaftextending through the wall of the said housing, a lever mounted on theshaft of the said governing member and adapted to move therewith,adjustable members mounted in the said lever, a resilient memberswiveily attached to the said housing, a flexible member connecting thesaid resilient member and the said lever, the said resilient membercausing the said flexible member to progressively contact with thesaidadj ustable members at points increasingly removed from the shaft ofthe said governing member during its movement to a closed position.

8. In a governor for hydrocarbonengines,

tive to the reactions imposed on the said governing member by theoperation of the engine, the said means comprising a lever connected tothe said governing member, adjustable membersin the said lever, aflexible member connected to the said lever, and means for maintainingthe said flexible member in contact with the said adjustable members inthe said lever. y

9. Ina governor fora hydrocarbon engine, the combination of an intakeconduit, a govern'ing memberlocated in the said conduit, the saidgoverning member being capable of being moved to a closed position bythe reactions imposed thereupon by the operation of the engine, andmeans for maintaining the said governing member inia state ofequilibrium at a predetermined speed, relative to the reactions imposedthereupon by the operation of the engine, the said means comprising alever connected to the said governing member and adapted to movetherewith, adjustable members mounted in the said lever, a flexiblemember connected at one of its ends, to the said lever, the saidflexible member lying in the path of the movement of the said adjustablemembers, and a resilient member fastened, at one of its ends, to thesaid flexible member,'the said resilient member being suitably anchoredat the other of its ends. 7

10. In a governor for the intake of hydrocarbonengines, the combinationof a housing having an intake conduit, a governing meniber in the intakeconduitof the said housing, the said governing member being capable ofbeing moved to a\closed position by the reactions imposed thereupon bythe operation of the engine, and means for maintaining the saidgoverning member in a position corresponding to a predetermined enginespeed, the said means comprisingia lever attached to the said governingmember and adapted to move therewith, adjustable means mounted on thesaid lever, a follower attached to the said lever and resilientlyconnected to the said housing, the said follower being adapted toprogressively contact with the said adjustable means.

11. In a valve counterbalancing mechanism in a governor for an internalcombustion engine, the combination of a lever connected to the valve andadapted to move therewith, a plurality of adjusting members mounted onthe said lever, a resilient member swivelly mounted, and a flexiblemember connected to the said lever and the" said resilient member, thesaid flexible member being adapted to the combination of an intakeconduit, a gov {progressively contact with the said adjustable members,the said flexible member thereby exerting on the said lever, a reactionwhose control characteristics change with every increment of movement ofthe said lever.

12. In a valve counterbalancing mechanism in agovernor for an internalcombustion en erning member located in the said conduit,

the said governing member being capable of being moved to a closedposition b the op eration of'the engine, and means or maintainin g thesaid governing member in a-state of equilibriumat a predetermined speed,relathe said adjusting members, and a spring swivelly anchored, the saidspring being connected to the said flexible member and exert- I ingprogressively, through the said flexible member, a force on the saidadjusting means at points increasingly removed from the pivotal point ofthe said valve of the governor during the closing movement of the valve.

13. In a governing device for an internal combustion engine, thecombination of an intake conduit, a valve therein having a spindle, alever secured to the spindle of the said valve, and adapted to movetherewith, adjustable members on the said lever, yielding means swivellyanchored. and a flexible member connected to the said yielding means andthe said lever, the said flexible member transmitting controlling forcesfrom the said yielding means to the said adjustable members, at pointsincreasingly removed from the spindle of the said valve during theclosing movement of the said valve.

14. In a valve counterbalancing mechanism in a governor for an internalcombustion engine the combination of a lever'connected to the valve andadapted to oscillate therewith, adjustable members mounted on to-thesaid lever and adapted to contact with the said adjustable members, andresilient means swivelly anchored to permit movement in a plane parallelto the plane of the movement ofthe said lever, the said resilient meansbeing connected to the said flexible member and thereby exerting anaccelerating force on the said adjustable members, during the closingmovement of the valve, in accordance with the reactions exerted on 'thevalve by the operation of the engine. I

15. In a governing device for an internal combustion engine. an intakeconduit, a valve located in the saidintake conduit, the said valvebeingcapable of being moved to a closed position by the reactions imposedthereupon by the operation of the engine, a lever connected to the saidvalve and adapted to move therewith, adjustable members mounted in thesaid lever, a resilient member sWivelly anchored, an intermediate memberconnecting the said resilient member and the said lever the saidintermediate member pro-. gressively conforming to the adjustablemembers of the said lever during its movement, and means for stoppingthe said lever in accordance with a predetermined open position of thesaid valve.

16. In a governing device for an internal combustion engine, an intakeconduit, 21 valve located in the said conduit,.the said valve beingcapable of being moved to a closed pothe said lever, a flexible memberconnected sition by the reactions imposed thereupon by the operation ofthe engine, a lever connected to the said valve and adapted to movetherewith, adjustable members mounted in the said lever, a followeradapted to flexibly contact with the ends of the said adjustablemembers, and means for exerting, through the said follower, variableforces on the said lever, in accordance with the reactions exerted onthe said valve by the operation of the engine. 17. In a governing devicefor an internal combustion engine, a valve capable of being moved to aclosed position by the reactions imposed thereupon by the operation ofthe engine, resilient means opposing the movement of the said valve andconnecting means between the said resilient means and the said valve,the said connecting means including a movable lever, adjustable membersmounted in the said lever, and a flexible member contacting with thesaid adjustable members.

18. In a valve control mechanism for an internal combustion engine, thecombination of a lever connected to the valve and adapted to movetherewith, the said lever having. a plurality of contact surfaces, and aflexible member connected at one of its ends to the said lever andsuitably anchored at the other of its ends, the said flexible memberbeing adapted to progressively contact with the contact surfaces of thesaid lever.

19. In a valve control mechanism for an internal combustion engine, alever connected to the valve and adapted to move therewith, thesaid'lever having a plurality of contact surfaces capable of beingadjusted to a definite contour relative to the predetermined speed of agiven engine.

GLENN L. MOYERS. EARL A. ABRAHAM.

